This is an OCR edition without illustrations or index. It may have numerous typos or missing text. However, purchasers can download a free scanned copy of the original rare book from GeneralBooksClub.com. You can also preview excerpts from the book there. Purchasers are also entitled to a free trial membership in the General Books Club where they can select from more than a million books without charge. Volume: 8; Original Published by: American book company in 1900 in 132 pages; Subjects: Radiation; Magnetooptics; History / General; Science / General; Science / History; Science / Nuclear Physics; Science / Radiation; Science / Philosophy